한국인 상용 식품의 요오드 데이터베이스 업데이트와 이를 활용한 한국 성인의 요오드 섭취량 및 배설량 평가: 2013–2015 국민건강영양조사자료를 이용하여

Purpose: Variations in the iodine contents of foods is critical for estimating the iodine intake. This study aimed to update the iodine database of common Korean foods and evaluated the iodine intake in Korean adults. Methods: A list of 855 Korean foods was selected for the updated iodine database. The updated database was established with Version 1 and 2 by applying an average or minimum value for the imputed values. The iodine intake was estimated in 5,927 Korean adults using the data from the 2013-2015 Korea National Health and Nutrition Examination Survey. Results: The analytical values in the updated database were 166 (19.4%), followed in order by 318 (37.2%), 247 (28.9%), and 124 (14.5%) for the adapted, imputed, and missing values, respectively. The median of dietary iodine intake was 352.1 ㎍/day (± 2,166.1) and 343.4 ㎍/day (± 2,161.9) in Version 1 and 2 among the total population. The contribution rates of each food group to the iodine intake were 55.7% for seaweeds, which showed a similar trend in Version 2. When subjects were divided by consumption of seaweeds, the median iodine intake was 495.7 ㎍ in the consumer group, which was almost double (241.2 ㎍) that of the non-consumer group. The proportion of subjects who consumed below the Estimated Average Requirement of iodine was 11.0% in the non-consumer group. In contrast, 11.6% in the consumer group of seaweed consumed above the Upper Level of iodine. When the dietary iodine and urinary iodine were examined, the regression coefficient was 0.11718 in Version 1 and 0.11512 in Version 2 after adjusting for age and sex. Conclusion: This study presented the variation of iodine intake in Korean adults by applying different versions of the iodine database. As the iodine intake can vary due to the highly variable concentrations in the major food sources, an iodine database is necessary to be monitored, and caution should be taken when the database is used in research. 본 연구는 한국인의 상용 식품에 대한 요오드 데이터베이스를 개정하고, 버전을 달리하여 한국인의 요오드 섭취수준을 평가하였으며, 배설량을 이용하여 섭취량과의 상관성을 살펴보았다. 요오드 데이터베이스는 기존의 Han 등 [2]의 데이터베이스를 기초로 최신의 참고문헌들을 활용하여 개정하였다. 요오드 데이터베이스 구축은 상용 식품 목록에 분석값, 문헌값, 대체값, 결측값 등의 우선순위 순서로 요오드값을 적용하였고, 분석값은 총 166개 (19.4%), 문헌값 318개 (37.2%), 대체값 총 247개 (28.9%), 결측값 124개 (14.5%)이었다. 대체값은 레시피나 수분함량을 고려하여 계산하거나 유사식품들의 일반값을 생성하여 사용하였고, 일반값 생성 시 평균값과 최솟값을 선정하여 버전 1과 2로 구분하였다. 한국 성인의 요오드 섭취 수준 평가는 제6기 국건영을 활용하였고, 요오드 섭취량의 중앙값은 전체의 경우 352.1 ㎍/일이었고 남자는 400.8 ㎍/일이며, 여자는 389.0 ㎍/일이었다. 이는 버전 2과 비교하여 조금 높았지만 큰 차이는 보이지 않았다. 전체